Control of three-phase grid connected converter based on harmonic power injection method under the non-ideal grid voltage conditions

被引：0
|
作者：
Zhou X. [1 ]
Chen H. [1 ]
Xu H. [1 ]
机构：
[1] Department of Electrical Engineering, Harbin Institute of Technology, Harbin, 150001, Heilongjiang Province
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2016年 / 36卷 / 01期
关键词：
Direct power control; Extended state observer; Harmonic reduction; Power system harmonics; PWM power converters; Three-phase grid connected converter;
D O I：
10.13334/j.0258-8013.pcsee.2016.01.023
中图分类号：
学科分类号：
摘要：
Under the non-ideal grid voltage conditions, which are distorted or unbalanced grid voltages, the conventional control strategy for three-phase grid connected converter would not be able to obtain satisfactory results. Therefore, based on the relationship between the power flows under non-ideal voltage conditions and the ideal "average unit power factor with sinusoidal currents", the power flow equations for the three control targets are deduced respectively in this paper. This paper achieves three control targets by harmonic power injection method respectively. Finally, a linear active disturbance rejection control (LADRC) is designed to improve the system's performance. Experiments show that the proposed methods have the advantages of simple structure, low harmonics etc. © 2016 Chin. Soc. for Elec. Eng.
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收藏
页码：215 / 223
页数：8
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